I found this filter online http://www.walmart.com/ip/Fish-Canister-External-3-Stage-Filter-Pump-For-Aquarium-Pond-Pump-Fish-Tank-New/34744363
I don't know much about filters but I've been hearing that upgrading to a canister filter would be a good idea. This seemed like a good price from others I've looked at but if it's just going to be a cheap piece of junk I don't want to waste my money. Right now I have a 10 gallon tank but plan on upgrading when a good deal comes along or if my little guy seams like he's starting to outgrow it.
There's also this one http://www.walmart.com/ip/Fish-Canister-External-5-Stage-Filter-Pump-For-Aquarium-Pump-Fish-Tank-New/29608057
Which is a 5-stage filter vs the 3-stage link above.
Any input or advice would be greatly appreciated!